I bought this car new and have not had one mechanical problem (except the radio antenna replacement at 100,000 miles) thus far. The car still drives like a new Lexus, such a smooth ride at so many miles. Luxury and comfort--- I'm keeping this car as long as it allows me. No problems with convertible top to date. Had to replacement rear seat cupholder one time. Very flimsy.
The smooth, luxurious ride, of course, and the sound system rocks!
Sturdier backseat cupholders. Oh, the removable convertible cover (stylish when on) is a pain to remove, put on, and store when not in use.
Bought the SLE Convertible used with 40K miles. It has been a great car. I added aftermarket heated seats (about $350) and an XM commander radio with PIE adaptor (it plays using the CD button and not with FM modulator). Normal oil changes and maintenance - car runs great and is a blast to drive on sunny days, especially in the spring and fall. Mileage is about 24/gallon. Quiet ride with the top up.
Great radio. Power top. Homelink garage door opener. Roomy back seat for a two door car. Good trunk space.
Power convertible roof cover - the manual boot cover is a real pain to muscle into place, and the car looks unfinished with the top down when the boot cover is not in place.